wall property command

Syntax

wall property s a<s1 a1...> <range>

Assign facet surface properties. The value a is assigned to the surface property with name s. Any number of name-value pairs can be specified.

Note

Facet properties are surface properties that are used to fill contact model properties. These are distinct from wall attributes (modified with the wall attribute command) that are characteristics of walls, such as position or size.

The list of mechanical contact models is given in the “Contact Models” section. In the documentation for each contact model, a Properties table exists. These include: the linear, linear contact bond, linear parallel bond, hertz, hysteretic, smooth joint, and the flat joint property tables.

Note

Be aware of the distinction between attributes and properties! The tutorial example “Attributes and Properties” discusses this issue in detail.

Usage Examples

Add the property fric to all wall facets. This property can be used with inheritance to set the contact property fric.

wall property 'fric' [wallFriction]

from “LoadUnload.dat” in Probing a Granular Specimen

Add the property fric to all wall facets. This property can be used with inheritance to set the contact property fric.

wall property 'fric' 0.8

from “Hopper_doall.dat” in Hopper Flow

Add the property kn to all wall facets. This property can be used with inheritance to set the contact property kn.

wall property 'kn' 1e7

from “properties_in_contacts.dat” in Attributes and Properties